Winding structure for annular transformer

Abstract

The utility model provides a winding structure for a ring transformer, which solves the problems that a conventional ring transformer is single in winding and iron core fixing mode and cannot be adjusted according to the diameter of an iron core, and mainly comprises the iron core, a rack, winding machines fixed at two ends of the rack and a positioning mechanism, the positioning mechanism comprises a rotating motor, a self-centering adjusting assembly, at least one driving roller and a plurality of limiting rollers, the center of the bottom end of the driving roller is coaxially fixed to the output end of the rotating motor through an extending rotating shaft, and every two limiting rollers form a group and do relative movement with the center of the iron core through the self-centering adjusting assembly; a corresponding linear module is further fixed to the portion, at the bottom of the rotating motor, of the rack, the linear module is used for driving the rotating motor to move linearly in the direction of the center of the iron core, the outer wall of the driving roller makes contact with the outer wall of the iron core in an abutting mode, and the outer wall of the limiting roller makes contact with the outer wall of the iron core in a rolling mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to annular transformer technical field especially relates to a winding structure for annular transformer. BACKGROUND

[0002] Annular transformer is a big type of electronic transformer, has been widely used in household appliances and other technical requirements higher electronic equipment, its main use is as power transformer and isolation transformer. Annular transformer has complete series abroad, is widely used in computers, medical equipment, telecommunications, instruments and light illumination etc.

[0003] In the annular transformer manufacturing process, the winding of the core coil cannot be separated, and the existing winding mode is generally through the fixed point roller to support and position the outer wall of the core, but this mode cannot be applied to the manufacturing of core coils with various diameters, and the artificial repeated positioning and disassembly mode is time-consuming and laborious, therefore, the utility model provides a winding structure for annular transformer to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a winding structure for annular transformer. The three-point adjustable compression positioning of the outer edge of the core facilitates subsequent winding operation.

[0005] To solve the above technical problems, the utility model adopts the technical scheme: a winding structure for annular transformer, comprising: a core, a rack, a winding machine fixed at both ends of the rack and a positioning mechanism, the positioning mechanism comprises a rotating motor, a self-centering adjusting assembly, at least one driving roller and a plurality of limit rollers, the bottom center of the driving roller is fixed with the output end of the rotating motor through the extension shaft, the two limit rollers are a group and relatively move around the center of the core through the self-centering adjusting assembly, the rack is also fixed with a corresponding linear module at the bottom of the rotating motor, the linear module is used to drive the rotating motor to move linearly around the center of the core, the outer wall of the driving roller is in contact with the outer wall of the core, and the outer wall of the limit roller is in rolling contact with the outer wall of the core.

[0006] Furthermore, the self-centering adjustment assembly includes a sliding base, guide rods, blades rotatably connected to the sliding base, and two oscillating members symmetrical about the center of the sliding base. The guide rods include two members, each slidably connected to one of the oscillating members. The guide rods are fixed to the sliding base via multiple guide seats. Each oscillating member includes a oscillating rod, a connecting sleeve, a sliding plate, and a heightening platform. The blades are parallelogram-shaped with a bearing positioning groove fixed at their center for an external motor to be inserted and driven. Both ends of the blades are hinged to one end of the oscillating rod of each of the two oscillating members via connecting sleeves. The other end of the oscillating rod is hinged to the end of the sliding plate away from the blade. The sliding plate is slidably connected to the guide rods, and the heightening platform is fixed to the top of the sliding plate.

[0007] Furthermore, the limiting rollers are a set, and the bottom of each limiting roller is connected to the raising platform in each swinging member by a nut thread through an extended connecting rod.

[0008] Furthermore, the linear module includes a drive motor, a turntable, a screw, a slide rod, a nut seat, and a slide table. The drive motor is fixedly connected to the side end of the frame, and its output end is fixed to the screw bearing. The slide table is fixed on the frame and is used to rotatably connect the end of the screw away from the drive motor. One end of the slide rod is fixed to the side end of the frame, and the other end is fixed on the frame. The center of the nut seat is threadedly engaged with the screw. Both ends of the slide table are slidably connected to the slide rod. Its bottom is fixedly connected to the top of the nut seat, and its top is fixedly integrated with the slide table. The top of the slide table is fixedly connected to the rotating motor.

[0009] Furthermore, the winding machine has a belt-driven reel with a rotating bobbin fixed to its inner wall, and one end of the reel has a movable locking slot for the iron core to pass through for winding.

[0010] Furthermore, the outer wall of the iron core is chamfered to form a convex contact edge, and the thickness of the drive roller and the limiting roller is greater than the thickness of the contact edge.

[0011] Compared with the prior art, the beneficial effects of this utility model include: the outer edge of the iron core is pressed and positioned in a three-point adjustable manner by using a drive roller and two limit rollers, the distance between the two limit rollers is adjustable, and the distance between the drive roller and the iron core is adjustable. The adjustment process is all done by electric motor adjustment, eliminating the need for laborious manual disassembly and assembly, which is convenient and reliable, and greatly improves the winding efficiency of the toroidal transformer iron core coil. Attached Figure Description

[0012] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0013] Figure 1 The schematic diagram shows an overall structural schematic diagram according to one embodiment of the present invention;

[0014] Figure 2 The diagram schematically shows an isometric view of a positioning mechanism according to one embodiment of the present invention.

[0015] Figure 3 The schematic diagram shows a front view of a positioning mechanism according to one embodiment of the present invention;

[0016] Figure 4 The illustration schematically shows a method proposed according to one embodiment of the present invention. Figure 3 Sectional view along axis AA.

[0017] The following are the labels in the diagram: 1. Iron core; 2. Frame; 3. Winding machine; 4. Positioning mechanism; 5. Rotary motor; 6. Self-centering adjustment component; 7. Drive roller; 8. Limit roller; 9. Rotating shaft; 10. Linear module; 11. Sliding base; 12. Guide rod; 13. Blade; 14. Swing component; 15. Guide seat; 16. Swing rod; 17. Connecting sleeve; 18. Slide plate; 19. Elevating platform; 20. Bearing positioning groove; 21. Connecting rod; 22. Nut; 23. Drive motor; 24. Turntable; 25. Screw; 26. Slide rod; 27. Nut seat; 28. Slide table; 29. ​​Wire reel; 30. Wire spool; 31. Insert; 32. Contact edge. Detailed Implementation

[0018] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0019] According to one embodiment of the present invention, in conjunction with Figures 1-4 As shown.

[0020] like Figure 1As shown, in this embodiment, a winding structure for a toroidal transformer includes: an iron core 1, a frame 2, a winding machine 3 fixed at both ends of the frame 2, and a positioning mechanism 4. The positioning mechanism 4 includes a rotating motor 5, a self-centering adjustment component 6, at least one drive roller 7, and multiple limiting rollers 8. The center of the bottom end of the drive roller 7 is coaxially fixed to the output end of the rotating motor 5 via an extended rotating shaft 9. The limiting rollers 8 are in pairs and move relative to each other around the center of the iron core 1 via the self-centering adjustment component 6. The frame 2 also has a corresponding linear module 10 fixed at the bottom of the rotating motor 5. The linear module 10 is used to drive the rotating motor 5 to move linearly around the center of the iron core 1. The outer wall of the drive roller 7 is in abutting contact with the outer wall of the iron core 1, and the outer wall of the limiting roller 8 is in rolling contact with the outer wall of the iron core 1.

[0021] For the winding machine 3, it is a mature existing technology component. In this embodiment, the winding machine 3 has a belt-driven spool 29, and a rotating bobbin 30 is fixed on the inner wall of the spool 29. One end of the spool 29 has a movable locking slot 31 for the iron core 1 to pass through for winding. Specifically, during winding, the coil is wound on the bobbin 30, and then pressed against the spool 29. The pressing and covering of the coil is achieved through the pressing head at the top of the spool 29, and simultaneously passes through the movable and closed slot 31 for the outer iron core 1 to pass through. Then, the coil on the iron core 1 is wound. This will not be described in detail here.

[0022] In this application, a more significant improvement is the ability to position and wind iron cores 1 with different diameters. Conventional designs typically use extended rollers to position the core on a table, with manual adjustment of the clamping mechanism. This method is inconvenient and makes it difficult to control the distance from the outer edge of the iron core 1, leading to excessive or insufficient contact and indirectly reducing the efficiency of the subsequent winding process. To address this issue, this application uses a three-point adjustable clamping and positioning mechanism consisting of a drive roller 7 and two limiting rollers 8. The spacing between the two limiting rollers 8 and the distance between the drive roller 7 and the iron core 1 are also adjustable, all automatically adjusted by a motor, eliminating the need for manual effort and ensuring convenience and reliability.

[0023] like Figures 2-4As shown, the adjustment of the two limiting rollers 8 in this embodiment is achieved by a self-centering adjustment assembly 6. This assembly specifically includes a sliding base 11, a guide rod 12, a blade 13 rotatably connected to the sliding base 11, and two swinging members 14 symmetrical about the center of the sliding base 11. The guide rod 12 includes two members and is slidably connected to each of the swinging members 14 respectively. The guide rod 12 is fixed to the sliding base 11 by multiple guide seats 15. Each swinging member 14 includes a swing rod 16, a connecting sleeve 17, a sliding plate 18, and a raising platform 19. The blade 13 has a parallelogram structure and a bearing positioning groove 20 is fixed in its center for an external motor to be embedded and driven. The two ends of the blade 13 are respectively hinged to one end of the swing rod 16 of the two swinging members 14 through the connecting sleeve 17. The other end of the swing rod 16 is hinged to the end of the sliding plate 18 away from the blade 13. The sliding plate 18 is slidably connected to the guide rod 12, and the raising platform 19 is fixed to the top of the sliding plate 18. Furthermore, the limiting rollers 8 are a group, and the bottom of each limiting roller 8 is threadedly connected to the raising platform 19 in each swing member 14 via an extended connecting rod 21 and a nut 22.

[0024] With the above structure, after the external motor (not shown in the figure) is driven to rotate by the bearing positioning groove 20, the parallelogram structure can drive the swing rod 16 with hinged ends to swing in a relative manner. Since the other end of the swing rod 16 is hinged to the slide plate 18, and the bottom end of the slide plate 18 is slidably limited by the guide rod 12, the rotation effect of the blade 13 can be converted into the two slide plates 18 moving away from or closer to each other on the guide rod 12. Simultaneously, the two limiting rollers 8 are driven away from or in contact with the outer edge of the iron core 1 through the connecting rod 21. The interval distance is adjustable and it can be applied to the winding operation of iron core 1 with different diameters.

[0025] Similarly, such as Figure 3 As shown, for the displacement adjustment of the drive roller 7, the linear module 10 includes a drive motor 23, a turntable 24, a screw 25, a slide rod 26, a nut seat 27, and a slide table 28. The drive motor 23 is fixedly connected to the side end of the frame 2, and its output end is fixed to the bearing of the screw 25. The slide table 28 is fixed on the frame 2 and is used to rotatably connect the end of the screw 25 away from the drive motor 23. One end of the slide rod 26 is fixed to the side end of the frame 2, and the other end is fixed on the frame 2. The center of the nut seat 27 is threadedly engaged with the screw 25. The two ends of the slide table 28 are slidably connected to the slide rod 26. Its bottom is fixedly connected to the top of the nut seat 27, and its top is fixedly integrated with the slide table 28. The top of the slide table 28 is fixedly connected to the rotary motor 5.

[0026] With the above structure, after the drive motor 23 outputs rotation, it can drive the screw 25 to rotate and be positioned on the turntable 24. Under the thread action of the screw 25 and the limiting action of the slide rod 26, the nut seat 27 can drive the slide table 28 to move linearly in the direction of the axis of the screw 25. That is, the drive roller 7 at the top of the slide table 28 is moved away from or closer to the center of the iron core 1. The main function of the drive roller 7 is to abut against the outer edge of the iron core 1 to drive the iron core 1 to rotate and wind.

[0027] Furthermore, in this embodiment, the edge of the outer wall of the core 1 is chamfered to form a convex contact edge 32, and the thickness of the drive roller 7 and the limiting roller 8 is greater than the thickness of the contact edge 32. Through the adjustable contact between the contact edge 32 and the drive roller 7 and the limiting roller 8, winding operations can be performed on cores 1 of larger diameters, greatly improving the winding efficiency of the coil of the toroidal transformer core 1.

[0028] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A winding structure for a toroidal transformer, characterized in that, include: The system comprises an iron core, a frame, a winding machine fixed at both ends of the frame, and a positioning mechanism. The positioning mechanism includes a rotating motor, a self-centering adjustment component, at least one drive roller, and multiple limit rollers. The center of the bottom end of the drive roller is coaxially fixed to the output end of the rotating motor via an extended rotating shaft. The limit rollers are arranged in pairs and move relative to each other around the center of the iron core via the self-centering adjustment component. A corresponding linear module is also fixed to the bottom of the rotating motor on the frame. The linear module is used to drive the rotating motor to move linearly in the direction of the center of the iron core. The outer wall of the drive roller is in abutting contact with the outer wall of the iron core, and the outer wall of the limit roller is in rolling contact with the outer wall of the iron core.

2. The winding structure for a toroidal transformer according to claim 1, characterized in that: The self-centering adjustment assembly includes a sliding base, guide rods, blades rotatably connected to the sliding base, and two oscillating members symmetrical about the center of the sliding base. Two guide rods are slidably connected to each oscillating member, and the guide rods are fixed to the sliding base via multiple guide seats. Each oscillating member includes a oscillating rod, a connecting sleeve, a sliding plate, and a heightening platform. The blades are parallelogram-shaped with a bearing positioning groove fixed at their center for an external motor to be inserted and driven. Both ends of the blades are hinged to one end of the oscillating rod of each of the two oscillating members via connecting sleeves. The other end of the oscillating rod is hinged to the end of the sliding plate away from the blade. The sliding plate is slidably connected to the guide rods, and the heightening platform is fixed to the top of the sliding plate.

3. The winding structure for a toroidal transformer according to claim 2, characterized in that: The limiting rollers are a set, and the bottom of each limiting roller is connected to the raising platform in each swinging component by a nut thread through an extended connecting rod.

4. The winding structure for a toroidal transformer according to claim 1, characterized in that: The linear module includes a drive motor, a turntable, a screw, a slide rod, a nut seat, and a slide table. The drive motor is fixedly connected to the side end of the frame, and its output end is fixed to the screw bearing. The slide table is fixed on the frame and is used to rotatably connect the end of the screw away from the drive motor. One end of the slide rod is fixed to the side end of the frame, and the other end is fixed on the frame. The center of the nut seat is threadedly engaged with the screw. Both ends of the slide table are slidably connected to the slide rod. Its bottom is fixedly connected to the top of the nut seat, and its top is fixedly integrated with the slide table. The top of the slide table is fixedly connected to the rotating motor.

5. The winding structure for a toroidal transformer according to claim 1, characterized in that: The winding machine has a belt-driven reel with a rotating bobbin fixed to its inner wall. One end of the reel has a movable locking slot for the iron core to pass through during winding.

6. The winding structure for a toroidal transformer according to claim 1, characterized in that: The outer wall of the iron core is chamfered to form a convex contact edge, and the thickness of the drive roller and the limiting roller is greater than the thickness of the contact edge.

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